 
(* ::Section:: *)
(* SDF *)
(* ::Text:: *)
(*SDF[i, j] denotes the SU(N) Kronecker delta with color indices i and j in the fundamental represnetation. SDF[i,j] is transformed into SUNFDelta[SUNFIndex[i],SUNFIndex[j]] by FeynCalcInternal..*)


(* ::Subsection:: *)
(* Examples *)
SDF[a,b]

%//FCI//StandardForm

%//FCE//StandardForm
